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[rust.git] / tests / ui / mem_replace.fixed

diff --git a/tests/ui/mem_replace.fixed b/tests/ui/mem_replace.fixed
index 4e47ac95d82d30f1e87292ad567fe8d3f6cff0d4..54e962e7116e82a36c531f74a231b97b03b97d74 100644 (file)
--- a/tests/ui/mem_replace.fixed
+++ b/tests/ui/mem_replace.fixed
@@ -1,21 +1,30 @@
-// Copyright 2014-2019 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
 // run-rustfix
 #![allow(unused_imports)]
-#![warn(clippy::all, clippy::style, clippy::mem_replace_option_with_none)]
+#![warn(
+    clippy::all,
+    clippy::style,
+    clippy::mem_replace_option_with_none,
+    clippy::mem_replace_with_default
+)]
 
 use std::mem;
 
-fn main() {
+fn replace_option_with_none() {
     let mut an_option = Some(1);
     let _ = an_option.take();
     let an_option = &mut Some(1);
     let _ = an_option.take();
 }
+
+fn replace_with_default() {
+    let mut s = String::from("foo");
+    let _ = std::mem::take(&mut s);
+    let s = &mut String::from("foo");
+    let _ = std::mem::take(s);
+    let _ = std::mem::take(s);
+}
+
+fn main() {
+    replace_option_with_none();
+    replace_with_default();
+}